TM 9-1005-222-12 Rifle, Caliber .30 M1, M1C (Sniper's) and M1D (Sniper's) 1969-03-17
"These instructions are for use by the operator and organizational maintenance personnel. They apply to Caliber .30 Rifles, M1, M1C (Sniper’s) and M1D (Sniper’s)."
Full Title: TM 9-1005-222-12 Operator and Organizational Maintenance Manual Rifle, Caliber .30: M 1, M 1 C (Sniper's) and M 1 D (Sniper's)m for a combat problem."
Digitized by the Combined Arms Research Library Digital Library, US Army Combined Arms Center. http://cgsc.cdmhost.com/cdm/